ISRO Update

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ISRO Update Dr. Jayati Datta Programme Manager, Chandrayaan-1 Programme Manager, Space Science Office ISRO HQ Antariksh Bhavan New BEL Road Bangalore 560 094 Tel +91-080-22172073, 23416271 Fax +91-080-23419190 email jayati@isro.gov.in : 

ISRO Update Dr. Jayati Datta Programme Manager, Chandrayaan-1 Programme Manager, Space Science Office ISRO HQ Antariksh Bhavan New BEL Road Bangalore 560 094 Tel +91-080-22172073, 23416271 Fax +91-080-23419190 email jayati@isro.gov.in

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Chandrayaan-1 The first Indian mission to the Moon, Chandrayaan-1 is aimed at high-resolution remote sensing of the moon in visible, near Infrared, low energy X-ray and high-energy X-ray regions. Specifically the objectives are To prepare a three-dimensional atlas (with a high spatial and altitude resolution of 5-10m) of both near and far side of the moon To conduct chemical and mineralogical mapping of the entire lunar surface for distribution of mineral and chemical elements such as Magnesium, Aluminum, Silicon, Calcium, Iron and Titanium with a spatial resolution of about 20 km as well as high atomic number elements such as Radon, Uranium & Thorium with a spatial resolution of about 40 km. The Chandrayaan-1 mission is now in the advanced stage; all payloads and the spacecraft have completed CDR. Chandrayaan-1 is planned to be launched during 2008, with a significant international participation and will have ten scientific payloads and an impactor probe.

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Chandrayaan-1 The ISRO payload/ experiments are: Terrain Mapping stereo Camera (TMC) in the panchromatic band, having 5 m spatial resolution and 20 km swath Hyper Spectral Imaging camera (HySI) operating in 400-950nm band with a spectral resolution of 15nm and spatial resolution of 80m with a swath of 20km. Lunar Laser Ranging Instrument (LLRI) with height resolution of about 10m High Energy X-ray spectrometer (HEX) using Cadmium-Zinc-Telluride (CdZnTe) detector in the 20-250 keV energy region with spatial resolution of 40km Moon Impact Probe (MIP) as piggyback payload on the main orbiter of the Chandrayaan-1 spacecraft which will impact on the surface of the moon

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Chandrayaan-1 Apart from the above indigenous payloads/experiments, six experiments selected by ISRO through Announcement of Opportunity (AO) for inclusion in the Chandrayaan-1 mission are: Chandrayaan-1 Imaging X-ray Spectrometer [C1XS] through ESA -a collaboration between Rutherford Appleton Laboratory, UK and ISRO Satellite Centre, ISRO. Part of this payload is redesigned by ISRO to suit Chandrayaan-1 scientific objectives. Near Infra Red spectrometer [SIR-2] from Max Plank Institute, Lindau, Germany through ESA. Sub KeV Atom Reflecting Analyser [SARA] through ESA, a collaboration between Swedish Institute of Space Physics, Sweden and Space Physics Laboratory, Vikram Sarabhai Space Centre, ISRO. The Data Processing Unit of this payload/ experiment is designed and developed by ISRO, while Swedish Institute of Space Physics develops the payload. Radiation Dose Monitor Experiment [RADOM] from Bulgarian Academy of Sciences. Miniature Synthetic Aperture Radar [MiniSAR] from Applied Physics Laboratory, Johns Hopkins University and Naval Air Warfare Centre, USA through NASA. Moon Mineralogy Mapper [M-Cube] from Brown University and Jet Propulsion Laboratory, USA through NASA.

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Small Satellites for Earth's Near Space Environment (SENSE) (2010): SENSE is a twin satellite mission to probe the electromagnetic environment of the earth's near space region. The mission proposes to launch two small satellites at low earth orbit one with high inclination and the other at lower inclination for space weather related studies. The SENSE mission aims to unravel the roles played by major large-scale drivers in determining the state of the Ionosphere-Thermosphere system and the weather of the near space environment at low latitudes. Solar Coronagraph-ADITYA (2012): It is proposed to fly a space-borne coronagraph "ADITYA" in visible and near IR bands to study the coronal mass ejection and consequently crucial physical parameters for space weather such as the coronal magnetic field structures, velocity fields and their variability in the inner corona etc. The definition team reports for both these missions are under preparation.

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YOUTHSAT: A collaborative effort between India and Russia, with the following three payloads/ experiments: SOLRAD (Russia): To measure temporal and spectral parameters of solar flare X-rays and gamma rays as well as of charge particle (electrons and protons) fluxes, which are sensitive to solar flare activity. RaBIT (India): Radio beacon for Ionospheric Tomography: For two-dimensional mapping of ionospheric structures- both top and bottom side along the satellite path. Limb Viewing Hyper Spectral Imager (Visible) (India): For the altitude profile of neutral and ionized species of the upper atmosphere.